-2(x - 5) + 4(9 + x)
-2x + 10 + 36 + 4x
=2x + 46
386 divided by 20 is 19.3 so Greg averaged 19.3 miles per gallon.
Answer: R= 1
Explanation: no matter how you do it you still get 1 bc its x divided by y which is 1
Answer:
12.
Step-by-step explanation:
First arrange in ascending order:
2 5 8 10 14 17 21
The median is 10.
the lower quartile is the middle number of 2 5 and 8 which is 5.
Similarly the upper quartile is 17.
IQR = 17 - 5 = 12.